Improvement in hub-attaching devices



J.F..BEDNAR. Huib Attaching Dev-oef y No. 214,748. z Patented April 29,1879.

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UNITED STATES PATENT OEEIOE.

.IOsEPH E. EEDNAE, OE STERLING.,- ILLINOIS, AssIGNOE OE ONE-HALE HisEIGHT To JOHN v. EMMITT, OF sAME PLA'OE.

IMPROVEMENT IN HUB-ATTACHING DEVICES.

Specification forming part of Letters Patent N0. 214,748, dated April29, 1879; application filed I March 14, 1879.

Be it known that I, JOSEPH F. BEDNAR, of the city of Sterling, in thecounty of Whiteside and State'of Illinois, have invented certain new anduseful Improvements in Wheel- Fastenings 5' and I do hereby declare thatthe following is a full, clear, and exact description of the invention,which will enable others skilled in the art to which it appertains tomake and use the same, reference being had to the accompanying drawings,and to letters of reference marked thereon, which form a part of thisspecification.

My invention relates to au improvement in wheel-fastenings; andconsists, first, in an improved method of locking `the wheel to thespindle; second, in a device for compensating for the end wear; and,third, in a provision to exclude the dust and sand from the inside ofthe hub.

y Figure l is a side view of a spindle used in my invention. Fig. 2exhibits the locking devices in position. Fig. 3 shows such devices whendistended to allow of the removal or attachment of the wheel. Fig. 4 isa sectional view of the hub in place.

A is a spindle,-having the lixed inner shoulder, a, and the loose collarb, abutting Outwardly against the metallic follower c, the latter beingitted to traverse the threaded portion m of the spindle A. Although inthe model the collar b is xed, it sufficiently illustrates my invention.

C C are opposing clamps, pivoted to the inner face of the hub B at e,and having their inner faces concaved to conform to the bottom of theannular recess d between the shoulder a. and collar b on the spindle A.D is a key inserted through the hub E, and having the outer head, f, andhaving its inner end 'parl tially circular, so as to play within theclamps L) C, in the recesses g g therein, as shown, and resting, when inposition, in the annular recess d, but not on the bottom thereof. 'H isa piece of rubber (of the kind prepared to resist the action of oil)placed between the outer ends ofthe clamps C C, and designed to compressthe latter against the'bottom of the recess l. This rubber has aV-shaped groove lengthwise of its upper surface, to enable it to becompressed without bulging.

Gis a plate covering the locking devices, and fastened to the inner faceof the hub B by the screws fi i i c'.

The operation of myinvention is as follows: In .withdrawing the key Dits inner convex end 'acts as a wedge, and separates the clamps C Csufficiently to permit the insertion of the spindle A and the passageofcollar b and follower c. Then the key is pushed in, and rallows theclamps C C, acted upon by .the rubber spring H, to engage the recess don the spindle A. The wheel is then in position for use. The clamps C Cand the inner end of the key D enter and traversethe recess d, andthushold the Wheel on the spindle.

entering the hub. Outside of the loose collar b is the follower c,screwed on a thread cut on' the spindle, to advance toward the collar bby forward revolutions. The action of a vehiclewheel in use is to worktoward the end of the spindle. This has the effect of wearing away theinside face of the collar b, and the outside face of the clamps C C andkey D. To compensate for this wear Iprovide the follower c, which can bescrewed against the collar b as the latter wears, and thus obviate thelooseness and rattling otherwise resulting from such wear. Y

Among the advantages of lookin g the wheel at or near theshoulder is thefact that here the spindle is larger, and the annular recess does not somuch weaken the latter. Again, the locking devices are not so muchexposed to injury from concussion as when placed outf side of thespokes. The tendency of the oil on a spindle is to run toward the outerend.

In my invention Ipresent a smooth unbroken cylinder from the collar boutward, and therefore there is' nothing to prevent the inward flow ofthe oilwhen the outer end of the spindle should be at the greatestaltitude. The oil in the recess d cannot escape, and, as the oil on thespindle is confined between the follower c and the Vouter end of thehub, (the latter being closed,) by the alternate raising and lowering ofthe respective ends of the spindle The shoulderi b operates to excludethe sand and dust from I as the vehicle passes over the undulations ofthe ground the oil is constantly moving over every part of the spindle,and no part of the latter is permitted to become dry. In practical useone oiling1 will last for months.

The outer end of the hul) being closed, and the shoulder a., collar b,and follower c all preventing the escape ot' the oil and the ingress ofdirt, makes the spindle as secure against suoh contingencies as it ispracticable to provide.

What I claim as my invention, and desire to secure by Letters Patent,is-

l. The hub B, Clamps C (l, key D, rubber H, and plate G, in combination,substantially as shown, and for the purpose described.

2. In a Vehicle, the Combination of the axle A, provided with theshoulder a., collar b, and follower c, with the hub B, the latter havingthe clamps C C, key D, rubber H, and plate G, all constructed andoperating` substantially in the manner and for the purposes mentioned.

In testimony that I claim the foregoing as my own I afx my signature iuprese-nee of two witnesses.

JOSEPH F. IEDNAR.

Witnesses:

JOHN J. CUSHING, S. H. KINGSEY.

